julia

This page lists questions and answers that were posted by visitors named julia.

Questions

The following questions were asked by visitors named julia.

what is the radius of a circle using center and radius

You drop a stone from the top of a cliff that is 20 meters tall. Compute how long it will take for the stone to reach the bottom using various different choices for your coordinate system.

i know how to do it, i keep getting the wrong answer!! a bob of mass 4.00 kg is suspended from a fixed point by a massless string of length 1.50 m. The bob moves in a horizontal circle with the string always making an angle theta=22 from the vertical. wha...

where can i get a big list and descirptions of scientists who were involved with scientific fraud? i tried google without much success...

Any advice on how to figure out solubillty of Agno3?

A 20 kg child on roller skates, initially at rest, rolls 4 m down an incline at an angle of 30 degrees with the horizontal. If there is no friction between incline and skates, what is the kenetic energy of the child at the bottom of the incline? (g= 9.81...

Can someone show me step by step how to work this problem out please. Let C be the triangle with vertices (0,0), (1,0), and (1,2). Find the following line integral by two methods, directly and using greens theorem. 2xy^2dx + yx^2dy Thanks!!!

if u jump onto the floor, are you more likely to be hurt if your legs are relaxed or if your legs are stiff and your knees are locked? explain....plz help =)

A 0.15 kg baseball moving at +26 m/s is slowed to a stop by a catcher who exerts a constant force of -390 N. How long does it take this force to stop the ball? How far does the ball travel before stopping? plz plz plz help!!

In a collision between two soccer balls, momentum is conserved. Is momentum conserved for each soccer ball? explian... plz =)

what is the formula for finding the decrease in kenetic energy

At the equivalence point for CH3COOH, the pH will be?

2*cos^2(a/2)=(sin^2(a))/(1-cos(a)) can anyone help to prove this identity?

x + y + z when x = -6.059; y= 3.884, z = 15.710 2. -19 -(-2.65)

I need help how to figure out 2a-6c when a = -1/3 and c = 3/4

please help--I don't understand how to get started! A small particle of mass 2.0 x 10^-19 kg is attached to a nanofiber of relaxed length 0.50 nm (Recall that 1.0 nm = 10^-9 m) . The nanofiber is attached to a substrate (an immovable wall). The plot is a...

Is this true or a trick question? In order to get a piano to start moving, you must push against it with a larger force than it pushes on you?

Momentum is conserved whenever total mechanical energy is conserved. I believe this is false. Am I correct?

One glider with a mass 0.2 kg and a speed of 3.5 m/s traveling east collides with another glider with mass 0.5 kg and a speed of 2.0 m/s moving west. They collide and stick together. Calculate the net mechanical energy and is it a loss or gain?

how do I solve : 1/2 + 2/x =3/4. thanks for helping!

to subtract two decimals, line them up using the ?

How many moles of SO2 are required to make 125 mol CS2 How many moles of carbon monoxide form at the same time that 0.255 mol CS2 forms? THANK YOU

Make a list of expressions that are followed by the '-ing' form

i need an essay in italian about the shopping mania.please help me

someone can help me with a discription with this KEY WORDS: advertising billboards, buskers, clowns, drama groups, fireworks, graffiti, 'live statues', musicians, open-air concerts, pavement artists, sculptures, statues.

disolving sucrose, NaCl< and calcium chloried affect the boiling point of frezing point of water. Assuming that you have 0.1m solution of all these 3 compounds: a)rank then in order of decreasing freezing point. b) rank in order of increasing boiling poin...

calculate the molality of a solution that has 1.02kg sucrose (C12H22O11), dissolved in 554g water.

in the following total ionic equation, which ions are spectator ions? Cu2+ (aq) + 2NO3-(aq)+2Na+(aq)+S2-(aq)--->CuS(s)+2NO3-(aq)+2Na+(aq)

suppose you had an unknown solution that contained either dissolved NaOH, NaCl< or NaNO3. you add 4 drops of AgNO3 solution to 4drops of the unknown solution and observed that no solid formed. What can be concluded the unknown solution? why?

AgNO3+NaOH-->AgOH+NaNO3 give me molecular , total ionic and net ionic???"

supose 1.25 mol of N2 and 50.0g of O2 are moxied together. a)which one is the limiting reactant? b) what is the maximum mass in grams of NO2 that can be produced from the mixture? N2(g) + 2O2(g)=2NO2(g) ***please just show me how to set up the equations I...

for a combination reaction, it was calculated that 7.59g of A would exactly react with 4.88g of B. these amounts were reacted, and 9.04g of product was isolated. what was the percentage yield of reaction??

Thank you, you don't know how much you have help me with my chem class...thank you so much..your the best!!

Liquid water has a density of 1.00g/mL at 10.0C and .996g/mL at 30.0C. Calculate the change in volume that occurs when 500mL of water is heated from 10.0C to 30.0C.

at 50.0C the balloon ha a vlomue of 1.78L. Calculate the carbon dioxide density at this temperature.

well it saids: A 1.50L rubber balloon is filled with carbon dioxide gas at a temperature of 0.00C and a pressure of 1.00 atm. the density of the carbon dioxide gas under these conditions is 1.98g/L. a)at 50.0C the balloon ha a vlomue of 1.78L. Calculate t...

when an aqueous solution BaCl2 is mixied with an aqueois solution of Na2CO3, solid barium carbonate precipitates out of solution. write molecular equation, complete ionic equattionand net equation. is this the right formula?? BaCl2(aq)+Na2CO3(s)=BaCO3(s)?...

consider the following balance chemical equation: 2NH3(g)+3CuO(s)=N2(g)+3Cu(s)+3H2O(g) if 18.1grams of ammonia reacts with 90.4 grams of copper(II) oxide, which is the limitting reagent?? what is the theorectical yield of nitrogen gasd? if 8.52 g of N2 ar...

2NH3(g)+3CuO(s)=N2(g)+3Cu(s)+3H2O(g) if 18.1grams of ammonia reacts with 90.4 grams of copper(II) oxide, which is the limitting reagent?? what is the theorectical yield of nitrogen gasd? if 8.52 g of N2 are formed, what is the % yield of nitrogn gas?? ple...

nitrogen gas contained in a cylinder with a volume of 5.0x10^2 mL @ a temp of 30C and pressure of 710 torr. The gas is then compresse to a volume of 25mL and the temp. is reaised to 820C. what is the new pressure of the nitrogen gas?? Pf=p1*v1*t1/Tf*Vf P=...

A )Completare le farsi con il pronome personale opportune e con le desinenze del participio passato. 1-ALESSIA HA VINTO IL PRIMO PREMIO? ____GLI________ TELEFONO SUBITO E ____GLI _____DICO , SARA FELICISSIMA. 2- DEI COMPAGNI DI CLASSE HO RIVIST_O__SOLTANT...

Factor x2 - 100

what is the volume occupied by 16.0g ethane gas (C2H6) at 720 Torr and 18C? V=nRT/P conversion of mol: 16.0g C2H6 X 1mol C2H6/30.07g C2H6= .53mol C2H6 V= .53 mol(0.0821 L*atm/mol*K)(291)K / 720 Torr (1 atm/760Torr) V= 13.5 L

A 20.5 lb cast iron boat anchor displaces 1.33 qt of water when submerged. What is the density of the cast iron, in g/cm3? 1L=1.057 qt 1kg=2.205lb 1lb=453.6g 20.5lb X 453.6g/ 1lb = 9298.9g 1.33qt X 1L/1.057qt = 1.26L 1.26L X 1000cm3/1L = 1260cm3 9298.9g/1...

23. A 32.3 L sample of a gas at 305oC and 1.20 atm is to be cooled at constant pressure until its volume becomes 28.4L. What will be the new gas temperature? Tf = Vf*Ti/Vi Tf =28.4L x (305+273)K / 32.3L = (28.4)(578)K / 32.3 = 16415.2/32.3 Tf = 508K I got...

u/5=1.9 what is u

In bengal, india and Bangladashthere are about 2.6*10 to the power of 8. What is 2.6*10 to the power of 8 ?

what is 3*10^6=

what is 6*10^9=

Roxanne is making a strawberry milkshake in her blender. A tiny .0050-kg strawberry is rapidly spun aroundhe inside of the container with a speed of 14.0 m/s, held by a force of 10.0N. What is the radius of the blender at this location?

what is a related noun? mom and i are stuck.

Find the sum of the series 2 + 9/2! + 27/3! + 81/4! . . .

a load p is supported by a steel pin that has been inserted in a short wooden member hanging from the ceiling. the ultimate strength of the wood used is 60 MPa in tension and 7.5 MPa in shear, while the ultimate strength of the steel is 145 MPa in shear....

a load P is supported

A particle starts from the origin at t = 0 with an initial velocity of 5.5 m/s along the positive x axis.If the acceleration is (-2.8i + 4.1jm/s^2, determine (a)the velocity and (b)position of the particle at the moment it reaches its maximum x coordinate...

Vin paid $60 for 4 new DVDs. His friend Samuel paid $78 for 6 new DVDs. Who got a better deal?

rewrite these sentences into reported speech. 1-where did you get these dress? 2-who did these dress belong to? 3-where do you buy your clothes? 4-how long have you been collecting these clothes? 5-what will you wear at the party? 6-why are you decorating...

i am having trouble with two digit dividends. here is an example 34 divided 264

solar flares containing hot gases can rise to 120000 miles above the surface of the sun. What is the distance in kilometers? how do i set this up??

when a cross tile is placed on a number plane the centre number is the average of al the numbers covered. Explain why

suppose 25 bacteria settle into a cut on.your arem and begin to double.every thirty minutes. creste s table where x is the number of minutes and y is the number of bacteria

Although label choices vary for different printers, your textbook recommends __________ for laser and ink jet printers. A. Avery standard, 5160, Address B. Avery standard, 6150, Label C. Avery standard, 6150, Address D. Avery standard, 5160, Label I've lo...

A frictionless30degrees incline should provide an acceleration of 4.90m/s2 down the incline. A student with a stopwatch finds that an object, starting from rest, slides down a 15m very smooth incline in exactly 3s. Is the incline frictionless?

how do you do the counting up method

I need 2 three digit numbers that total 16848

In which of the following pairs of ionic compounds are both members of the pair soluble in water? a.AgNO3 and AgCl b.LiOH and Li2SO4 c.PbSO4 and BaCO3 d.NH4I and Sn3(PO4)2

Calculate the concentration in % (m/m) of a solution containing 20.5 g of LiF dissolved in 340.0 g of H2O. a.1.14% (m/m) b.5.69% (m/m) c.6.03% (m/m) d.6.42% (m/m)

can you show me the formula for this problem. calculate the grams of NaOH present in 9.0 ml of a 8.0 (m/v) NaOH solution. thank you

Can you show me the formula I need to do this problem. please a solution is made by dissolving 0.35 mole of LiI in enough water to give a final volume of 2.60 ml. What is the molarity of the solution? thank you

I have a 15ft board I need to cut into 2 1/8 inch pieces how many can I cut

In the preparation of a rock salt solution, 1.522 grams of impure rock salt was dissolved in 50.0 ml of distilled water. The total mass of the solution was found to be 51.522 grams. Calculate the weight percent of impure rock salt in the prepared solution...

An electron travels 2.7 m in 6.37 × 10−8 s. How fast is it traveling?

The volume of a cube is increased from 729 cubic centimetres to 849.285 cubic centimetres Use differentials to determine : (a) by approximately how many centimetres does the side length of the cube increase? (b)by approximately how many centimetres does t...

i need help on a question that involves finding the "value of the variable" ive started the question but im stuck of how to continue .its a right triangle which hypotenus length is cut by a altitude line "w+9" .the lengths cut are 8 and 18 .

maya made a sign with an area of 48 square centimeters What could her sign look like

ms. sue please help the characterization of the children is an important part of "The Story-Teller". which of the following quotes from the story offers the best evidence for the character of Cyril being mischievous? A. the children moved reluctantly to t...

The modern atomic model includes electrons orbiting the nucleus. Which of the following parts of Dalton's atomic model was disproved by the discovery of the electron? - Atoms are tiny particles. - Atoms cannot be divided into smaller parts . - Atoms have...

Sharon spent $2 on a magazine; then she spent half of the rest of her money on shoes. She spent half of her remaining money on lunch. She has $12 left. How much money did sharon start with?

5650 is compounded semiannually at 18% for 16 years

an aluminum cylinder, of height h=2ocm and of radius r=1ocm, rests with its base on a horizontal table. Density of aluminum P=2700kg/m^3 a-calculate the weight of the cylinder take g=10N/kg b-what is the value of the force exerted by the table on the cyli...

Find the product of 5 and 4 . Express your answer in simplest form.

In a cathode-ray tube, electrons are projected horizontally at 1.0×10^6 m/s and travel a horizontal distance 11.5 cm across the tube. How long are the electrons in flight? Express your answer to two significant figures and include the appropriate units. F...

A batter hits a ball, causing it to leave the bat at 135 m/s and at an angle of 18.3 degrees from the horizontal. If the baseball field is level, and ignoring the height at which the batter hits the ball, how far (horizontally, in meters) away from the ba...

The height of a rectangular prism is 20 centimeters. It has a surface area of 2,400 square centimeters. What are two possible sets of lengths and widths? Find one set of dimensions with l and w equal in length as well as a set of dimensions that are not e...

separate 50 into 2 parts such that 3 times the smaller is 10 less than twice the larger. Find both parts.

Georgetown and Franklin are 9.7 in apart on a map that has a scale of 1.1 in : 15 mi. How far apart are the real cities?

the number of ways you can order a two-course meal from a restaurant offering 12 main courses and 8 appetizers

Nine less than the quotient of two and a number xxx

what is the number form of six hundred thousand and 38 hundreds put together??

Laurie pushes Michael forward off a frozen pond onto a frozen patch of grass at 43.6 m/s. He slows down to 88.8 m/s and glides for 58.6 m. What was his acceleration? I have to round this to hundredths place. Send help, please.

the velocity of a particle moving along the x-axis at any time t>=0 is given by v(t)=cos(pi t)-t(7-2pi) find the acceleration at any time t

the sum of my digits is 15 the product of my digits is 56 I am even my tens place is smaller than my ones place

What are the saturated alcohols that have the general molecular formula?CvH2v+1O com v>1 Cvh2v+2O com v>1 CvH2vO com v>1 CvH2vO com v>3

Which is the decimal form of 92125?

The dimensions of a prism (hranol) of volume 1728 u 2 and lateral area (bočnej plochy) 720 u 2 are in geometric progression. Calculate these dimensions and their common ratio.

A may describe the color, texture, mass, or weight of a material. what is the answer that i did not write

what would be the initial concentration (M) for Fe+3 if you have 2.00 x 10-3 M Fe(NO3)3 in 1 M HNO3 ((ml) 5.00) 2.00 x 10-3 M KSCN ((ml) 1.00) Distilled water ((ml) 4.00)

A simple harmonic oscillator takes 13.0 s to undergo seven complete vibrations. (a) Find the period of its motion. (b) Find the frequency in hertz. (c) Find the angular frequency in radians per second.

You attach a 2.90 kg mass to a horizontal spring that is fixed at one end. You pull the mass until the spring is stretched by 0.500 m and release it from rest. Assume the mass slides on a horizontal surface with negligible friction. The mass reaches a spe...

you are comparing apples to oranges in a fruit bowl. Is the ration 2:3 same as the ratio 3:2 explain.

Answers

The following answers were posted by visitors named julia.

thank you so much!! it was so frustrating to get the wrong answer after wrong answer..

ok so the final answer is 1/2 e^y^2????

i agree, it's spry.

i need help like for you to show the work so i can figure it out i know how to replace the letters with the fractions but i don't know how to figure it out past there.

How do I calculate the momentum?

sorry i don't get can u explain more clearly pls.

i don't want it from internet but self made

ok thanks anyway !!

Thank you Drbo22...but if it dosent make sence I'm sorry but that's what the tearche wrote in the paper he gave us...

Thank you, you don't know how much you have help me with my chem class...thank you so much..your the best!!

well it saids: A 1.50L rubber balloon is filled with carbon dioxide gas at a temperature of 0.00C and a pressure of 1.00 atm. the density of the carbon dioxide gas under these conditions is 1.98g/L. a)at 50.0C the balloon ha a vlomue of 1.78L. Calculate t...

but i get 502.o and the answer in the back of my book said 2mL....so..

omg...I was wondering where u...I'm studying for a test for weds and I'm so lost with most of this...thank u for your help...

thank u so much...

ok..I see what i did wrong...thank u..ur the best!!!

thank you for all your help Drbob222...just whish me luck for tomorrow in my test... :)

thank you so much....your good, I wish you be my teacher I be passing my class with no problem....

I guess I need to figure out the s.f. or stop rounding numbers.... :( thank you...

is that the answer?

firt grade, a diamante, noun, then two adjectives, then verbs ending in ed or ing, then related nouns, then more ing/ed verbs, adjectives, then noun.

i don't understand the last step. how did you get to -1 + e^3 -1 = -2 + e^3

can you explain how you got both answers?

bouyant force i think.

12a+45=90 -45=90 ---------- 12a=45 --- -- 12 12 a=45\12

rewrite it as an addition problem. -4.8 + 4.9 = what? And then add 5.7 to your answer of -4.8 + 4.9 and that would be your answer.

4 you don't count the end ones unless there is a decimal point

If the scuba diver is looking from the water n=1.33 and the other man is above water so n=1, use the equation n1sin(theta)=n2sin(theta). 1.33sin(20)=1sin(theta) 27.06 degrees is the answer, but since it says from the horizontal do 90-27.06

Find the other end point of the line segment with the given endpoint and midpoint. Endpoint; (-4,-4),(midpoint:(7,3)

1A. 12.99*5%=12.99*.05=0.65 this is the sale tax 12.99 + 0.65= 13.64 is the price after tax 1B. 12.99*20%=12.99*0.2=$2.6 is discount 12.99 - discount= 12.99 - 2.6=10.39 is the price after discount was applied 10.39*5%=10.4*0.05=0.52 is the tax 10.39+.52=$...

2A. 329.00*15%= 329.00*0.15=$49.35 this is the discount. 329 - discount = 329 -49.35=$279.65 discounted price 2B. 329*10%=329*0.1=32.9 is how much more the ipad will cost compared to the old price (increase in price). Now add it to the old price: 329 + 32...

I believe first you need to add them 38+26=64, and then 10+54=64

1/6(8+t)^6+constant

I am not sure with one, m or n, is an input and which one is output. But I believe the following rule can work: To get n: 15-3, 10-2, 5-1, 0-0 . As you can see each time the number (3,2,1,0) that you have to subscribe to get n is getting smaller by one. (...

Sorry for misspells! Getting late!

I posted the answer in your latest question

Divide distance 4 1/2 by 1 1/2 you will get 3 (miles per hour). Please check exact math using the calculator but I believe it is right

I think margin of error is 0.08, because if 0.5-0.08=0.42 (or 42%) and 0.5-0.08=.58 (or 58%) so 0.08 works perfectly

You should first convert 1.4t into kg. Then from that number subscribe empty trailer's mass and you will get the answer

You start with 4 matches, then you add only three more to get another (attached to the fist one) square. Then each time to get one more square you add 3 more matches. Now, let x be a number of squares you can make from a given number of matches. Then 4+3*...

Did you provide the all information? Because all you can do with the given information is to plug P=4 into the equation and find x, but x is quantity of CD demanded. Consumer surplus is the difference between the max price a consumer willing to pay and th...

You should first convert 1.4t into kg. Then from that number subscribe empty trailer's mass and you will get the answer

The formula is y-y1= m*(x-x1) 1. Find the midpoint= [(x1-x2)/2, (y1-y2)/2] you will get (-4,-2) 2. Find slope m1= [2-(-6)]/[-7-(-1)]= 8/-6=-4/3 3. find the slope of the perpendicular line m1*m2=-1 -4/3*m2= -1 m2= 3/4 4. Plug in given points (-7,2) and (-1...

I posted the answer under your previous question.

"the area of the region under the graph" is an integral of f(x) from a to b, in your case from 4 to 10. ∫ f(x) from 4 to 10=∫ (10x-5)dx from 4 to 10. you just have to compute the integral and that will give you: 1/2*10x^2-5x evaluate it from 4 to 10 I hop...

Do you have any information about length of the sides maybe? By the way you do have information about at least one angle and it's 90 degrees (because triangle is a right one)

a flagpole casts a shadow 10 ft. long if a man 6 ft. tall casts a shadow 4 ft. long at the same time of day, how tall is the flagpole.

45 is the second answer to the second question.i don't know the first question

what i don't understand

lol, so immature

i believe that its D, because meat is more fatt-ning

lol wow same here i justjoined the ashworth family...

how do you get the 1135? I must not be calculating something correct

supposedly the answer to the second part of the question is y = −6.5×10−14 m any insight?

Why did the British see the Second Continental Congress as an "unlawful assembly"?

When children learning. Alphabet which do they recognize first. A.oc B.kc C.br D.te Answer This Question

Can you give me the answer. I have answer it almost in 1 week

8 cups of sugar is needed.

Just took the test the person was right

the probability of spinning an even number is 40 percent what is the probability of not spinning an even number in a decimal

what is 1/2 +1/4+1/4=?

Why do u multiply 1/10 ????

shouldn't it be a=-pi sin(pi t)-7+2pi then?

the fracion of cats is ...

"com" is with. thank youu

it’s ethanoic acid

how do i get the answer to $63 devided by $7 = $9

B.He calls Robert a scaredy-cat. D.the Wolf B.Robert's character is proof that determination can help overcome challenges. B."How dumb can you get!" said Robert. "A colossal waste of time if you ask me. So get going! Scram! Shoo!" C."There's an infinite n...

I don't have a clue

i dont understand the answer can you explain please?